Your pregnancy at 33 weeks
At 33 weeks, your baby’s brain and nervous system are fully developed. Learn about your baby’s growth, the significance of Braxton Hicks contractions, and the importance of vitamin K injections after birth.
This week marks your baby having a fully developed brain and nervous system—an important milestone as they edge closer to the day they meet you, Mum!
Baby's Development
Your baby will now continue to plump up and grow until they make an appearance in a few weeks’ time.
- Bone Development: Their bones are busy hardening up, apart from their skull bone which will stay soft until baby is around 12-18 months old. This flexibility will help when they pass through the birth canal.
- Size: At 33 weeks, they are approximately 43.7 cm from head to heel and weigh about 1.9 kg, similar to a large chicken.
Changes in Mum
You may start to experience Braxton Hicks contractions from this week, also known as practice contractions.
- Braxton Hicks: You may feel your muscles tighten over your bump for up to 30 seconds and then relax again. These shouldn’t hurt, but if they do and become more regular and intense, contact your midwife as you may be in labour.
- Vitamin K Injection: After you have given birth, you will be asked if you would like your baby to have a vitamin K injection. This is recommended by the Department of Health to help your baby’s blood clot properly but the decision is completely up to you.
Tips for This Week
- Monitor Contractions: Keep track of any contractions you feel. Braxton Hicks contractions are normal, but if they become painful or regular, contact your midwife.
- Decision on Vitamin K: Research and discuss with your midwife about the vitamin K injection to make an informed decision.
- Self-Care: Continue to take care of yourself by staying hydrated, eating well, and getting plenty of rest.
Looking Ahead
As you continue through your third trimester, staying informed and prepared can help you feel more confident and ready for the arrival of your baby. Each week brings you closer to meeting your little one, and every step you take now is a step towards a smoother delivery and postpartum experience.
We’re here to support you every step of the way. Enjoy this special time, and soon you’ll be seeing even more incredible progress as your pregnancy continues.
This article has been written using the latest guidance and information from trusted sources, primarily the NHS. This information should not replace professional medical advice. Always consult with your healthcare provider for advice tailored to your personal health and circumstances.